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Showing 1–3 of 3 results
Advanced filters: Author: D. Viscor Clear advanced filters

  • Archaeopteryx had a mix of traits seen in non-flying dinosaurs and flying birds, leading to debate on whether it had powered flight. Here, Voeten et al. compare wing bone architecture from Archaeopteryx and both flying and non-flying archosaurs, supporting that Archaeopteryx had powered flight but with a different stroke than that of modern birds.

    • Dennis F. A. E. Voeten
    • Jorge Cubo
    • Sophie Sanchez
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • Excitations to Rydberg states in a gas of ultracold atoms are used to produce a robust, nonlinear phase shift of exactly π/2 between two photons, which is protected against variations in experimental parameters by a symmetry of the system.

    • Jeff D. Thompson
    • Travis L. Nicholson
    • Vladan Vuletić
    Research
    Nature
    Volume: 542, P: 206-209